Clips, elastic and sewn sheet clips made in Japan. Helps keep sheets and bed pads from shifting You can use it as a replacement for stretched rubber or as a bedwetting waterproof sheet; Uses Japanese resin clips that are less dangerous even when you are sleeping. The clip leverage is designed to fold up or down to open and close. The length adjustment parts are included, so it is suitable for both single and queen sizes. The clips are assumed to hold approximately 0.04 inch (1 mm). It may be damaged by forcing it down. Total length when laid flat: Length 57.1 inches (145 cm), Minimum 31.1 inches (79 cm), Maximum stretch: Approx. 98.8 inches (250 cm) (including clip) Rubber width: 0.6 inches (1.5 cm), Maximum clip length: Approx. 1.9 inches (4.8 cm), maximum width: 0.8 inches (2 mm) (10 inches (1 inches (1 mm) (1 inches (10 mm) of inner protruding inner projection Hand washable (do not soak, do not bleach) Due to the nature of the clip, there may be some marks or scratches. Because of the rubber product, there may be slight individual differences